ICE: index out of bounds: the len is 1 but the index is 1

[rkuklik]

Hello,

I am sorry, but I wasn't able to reproduce the bug outside my company's project (proprietary and which I don't have the permission to share), so I can't really help here. Code like this resides in proc-macro transformed function (#[component] from leptos) and inside recursivelly calling with! macro. Here is how approximately it looks:

Code

// NOTE: This example works standalone
use std::collections::HashMap;

#[derive(PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy)]
pub struct Id(pub usize);

pub struct Source {
    pub id: Id,
    pub field1: usize,
    pub field2: usize,
}

fn main() {
    // With spelled out types this works
    let map: HashMap<_, _> = vec![Source {
        id: Id(0),
        field1: 96,
        field2: 240,
    }]
    .into_iter()
    .map(|item| (item.id, item))
    .collect();
    // Everything works fine until any op on the map
    map.get("any garbage (data type ignored)");
}

Meta

Fails on both nightly and stable, backtrace if from nightly.

rustc --version --verbose:

rustc 1.76.0-nightly (2f8d81f9d 2023-11-21)
binary: rustc
commit-hash: 2f8d81f9dbac6b8df982199f69da04a4c8357227
commit-date: 2023-11-21
host: x86_64-unknown-linux-gnu
release: 1.76.0-nightly
LLVM version: 17.0.5

rustc 1.74.0 (79e9716c9 2023-11-13)
binary: rustc
commit-hash: 79e9716c980570bfd1f666e3b16ac583f0168962
commit-date: 2023-11-13
host: x86_64-unknown-linux-gnu
release: 1.74.0
LLVM version: 17.0.4

Error output

error: internal compiler error: no errors encountered even though `delay_span_bug` issued

error: internal compiler error: no errors reported for args
  --> src/fitness/ui.rs:83:37
   |
83 |                 slot.capacity = map.get(slot.index).unwrap_or_default();
   |                                     ^^^
   |
note: delayed at compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs:525:22

  --> src/fitness/ui.rs:83:37
   |
83 |                 slot.capacity = map.get(slot.index).unwrap_or_default();
   |                                     ^^^

error: internal compiler error: {OpaqueTypeKey { def_id: DefId(0:3302 ~ addon[ef77]::fitness::ui::FitnessForm::__FitnessForm::{opaque#0}), args: [] }: OpaqueTypeDecl { hidden_type: OpaqueHiddenType { span: src/fitness/ui.rs:29:25: 29:38 (#2594), ty: ?0t } }}
  |
  = note: delayed at compiler/rustc_infer/src/infer/opaque_types/table.rs:44:26

Backtrace

thread 'rustc' panicked at compiler/rustc_hir_typeck/src/demand.rs:395:52:
index out of bounds: the len is 1 but the index is 1
stack backtrace:
   0:     0x7ffb8f772ba1 - std::backtrace_rs::backtrace::libunwind::trace::h5e85954398d12ce3
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
   1:     0x7ffb8f772ba1 - std::backtrace_rs::backtrace::trace_unsynchronized::hd106003daf308f1b
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7ffb8f772ba1 - std::backtrace::Backtrace::create::h258b89056f4f50c8
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/backtrace.rs:332:13
   3:     0x7ffb8f772af0 - std::backtrace::Backtrace::force_capture::hfbfae9ab8ad6a39f
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/backtrace.rs:313:9
   4:     0x7ffb924f354c - std[5f6dbc7992e36f36]::panicking::update_hook::<alloc[73e8f31ebd2d06b4]::boxed::Box<rustc_driver_impl[1b37cd9153daf3ad]::install_ice_hook::{closure#0}>>::{closure#0}
   5:     0x7ffb8f78dcb8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h583f85f885642a98
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/alloc/src/boxed.rs:2021:9
   6:     0x7ffb8f78dcb8 - std::panicking::rust_panic_with_hook::h51b7b3de85b330a5
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/panicking.rs:783:13
   7:     0x7ffb8f78da0e - std::panicking::begin_panic_handler::{{closure}}::h9f9c9a467f60d8ba
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/panicking.rs:657:13
   8:     0x7ffb8f78afc6 - std::sys_common::backtrace::__rust_end_short_backtrace::h037a6ad83e4b9233
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/sys_common/backtrace.rs:171:18
   9:     0x7ffb8f78d772 - rust_begin_unwind
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/panicking.rs:645:5
  10:     0x7ffb8f7da365 - core::panicking::panic_fmt::h9cec6616f663903f
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/core/src/panicking.rs:72:14
  11:     0x7ffb8f7da582 - core::panicking::panic_bounds_check::h1891103a978651ff
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/core/src/panicking.rs:189:5
  12:     0x7ffb9267c282 - <core[b21e5049fb800f2c]::slice::iter::Iter<&rustc_hir[80643429d4d3540e]::hir::Expr> as core[b21e5049fb800f2c]::iter::traits::iterator::Iterator>::find_map::<rustc_middle[54f2c08037379b7]::ty::Ty, <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::note_source_of_type_mismatch_constraint::{closure#3}>
  13:     0x7ffb926bfa06 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::note_source_of_type_mismatch_constraint
  14:     0x7ffb926d3369 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::report_arg_errors
  15:     0x7ffb94256444 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_argument_types
  16:     0x7ffb94315707 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  17:     0x7ffb9431522b - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  18:     0x7ffb94317dbf - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  19:     0x7ffb93cc2166 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_block_with_expected
  20:     0x7ffb943151e6 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  21:     0x7ffb94258bff - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_match
  22:     0x7ffb94315dc3 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  23:     0x7ffb93cc386f - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_block_with_expected
  24:     0x7ffb94318cbd - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  25:     0x7ffb94258bff - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_match
  26:     0x7ffb94315dc3 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  27:     0x7ffb943167da - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  28:     0x7ffb93cc386f - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_block_with_expected
  29:     0x7ffb943151e6 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  30:     0x7ffb93cf6a73 - rustc_hir_typeck[812642f5044e1f66]::check::check_fn
  31:     0x7ffb94287752 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_closure
  32:     0x7ffb94318347 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  33:     0x7ffb94252f09 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_argument_types
  34:     0x7ffb9424a7ef - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_call
  35:     0x7ffb94314e57 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  36:     0x7ffb93cf6a73 - rustc_hir_typeck[812642f5044e1f66]::check::check_fn
  37:     0x7ffb94287752 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_closure
  38:     0x7ffb94318347 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  39:     0x7ffb94252f09 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_argument_types
  40:     0x7ffb9424a7ef - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_call
  41:     0x7ffb94314e57 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  42:     0x7ffb93cf6a73 - rustc_hir_typeck[812642f5044e1f66]::check::check_fn
  43:     0x7ffb94287752 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_closure
  44:     0x7ffb94318347 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  45:     0x7ffb94252f09 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_argument_types
  46:     0x7ffb9424a7ef - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_call
  47:     0x7ffb94314e57 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  48:     0x7ffb93cf6a73 - rustc_hir_typeck[812642f5044e1f66]::check::check_fn
  49:     0x7ffb94287752 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_closure
  50:     0x7ffb94318347 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  51:     0x7ffb94252f09 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_argument_types
  52:     0x7ffb9424a7ef - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_call
  53:     0x7ffb94314e57 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  54:     0x7ffb93cf6a73 - rustc_hir_typeck[812642f5044e1f66]::check::check_fn
  55:     0x7ffb94287752 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_closure
  56:     0x7ffb94318347 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  57:     0x7ffb94252f09 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_argument_types
  58:     0x7ffb9424a7ef - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_call
  59:     0x7ffb94314e57 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  60:     0x7ffb93cc2222 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_block_with_expected
  61:     0x7ffb943151e6 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  62:     0x7ffb93cf6a73 - rustc_hir_typeck[812642f5044e1f66]::check::check_fn
  63:     0x7ffb94287752 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_closure
  64:     0x7ffb94318347 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  65:     0x7ffb93cc5995 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_decl
  66:     0x7ffb93cc3217 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_block_with_expected
  67:     0x7ffb943151e6 - <rustc_hir_typeck[812642f5044e1f66]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  68:     0x7ffb93cf6a73 - rustc_hir_typeck[812642f5044e1f66]::check::check_fn
  69:     0x7ffb93b15a72 - rustc_hir_typeck[812642f5044e1f66]::typeck
  70:     0x7ffb93b14e53 - rustc_query_impl[9991b025295daeb1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9991b025295daeb1]::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 8usize]>>
  71:     0x7ffb93d6f6c3 - rustc_query_system[886bde11500d09fb]::query::plumbing::try_execute_query::<rustc_query_impl[9991b025295daeb1]::DynamicConfig<rustc_query_system[886bde11500d09fb]::query::caches::VecCache<rustc_span[2f0fd5f8ae050e80]::def_id::LocalDefId, rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9991b025295daeb1]::plumbing::QueryCtxt, true>
  72:     0x7ffb93d7e18b - rustc_query_impl[9991b025295daeb1]::query_impl::typeck::get_query_incr::__rust_end_short_backtrace
  73:     0x7ffb945500f4 - rustc_hir_analysis[684fddeff0c0f7bf]::collect::type_of::type_of_opaque
  74:     0x7ffb9454ffdb - rustc_query_impl[9991b025295daeb1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9991b025295daeb1]::query_impl::type_of_opaque::dynamic_query::{closure#2}::{closure#0}, rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 8usize]>>
  75:     0x7ffb93b78128 - rustc_query_system[886bde11500d09fb]::query::plumbing::try_execute_query::<rustc_query_impl[9991b025295daeb1]::DynamicConfig<rustc_query_system[886bde11500d09fb]::query::caches::DefaultCache<rustc_span[2f0fd5f8ae050e80]::def_id::DefId, rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9991b025295daeb1]::plumbing::QueryCtxt, true>
  76:     0x7ffb94869b8b - rustc_query_impl[9991b025295daeb1]::query_impl::type_of_opaque::get_query_incr::__rust_end_short_backtrace
  77:     0x7ffb938ed4b8 - rustc_middle[54f2c08037379b7]::query::plumbing::query_get_at::<rustc_query_system[886bde11500d09fb]::query::caches::DefaultCache<rustc_span[2f0fd5f8ae050e80]::def_id::DefId, rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 8usize]>>>
  78:     0x7ffb919f636f - rustc_hir_analysis[684fddeff0c0f7bf]::collect::type_of::type_of
  79:     0x7ffb93890776 - rustc_query_impl[9991b025295daeb1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9991b025295daeb1]::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 8usize]>>
  80:     0x7ffb93b78128 - rustc_query_system[886bde11500d09fb]::query::plumbing::try_execute_query::<rustc_query_impl[9991b025295daeb1]::DynamicConfig<rustc_query_system[886bde11500d09fb]::query::caches::DefaultCache<rustc_span[2f0fd5f8ae050e80]::def_id::DefId, rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9991b025295daeb1]::plumbing::QueryCtxt, true>
  81:     0x7ffb93c60175 - rustc_query_impl[9991b025295daeb1]::query_impl::type_of::get_query_incr::__rust_end_short_backtrace
  82:     0x7ffb939fcff7 - rustc_middle[54f2c08037379b7]::query::plumbing::query_get_at::<rustc_query_system[886bde11500d09fb]::query::caches::DefaultCache<rustc_span[2f0fd5f8ae050e80]::def_id::DefId, rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 8usize]>>>
  83:     0x7ffb941e2f54 - <rustc_middle[54f2c08037379b7]::ty::util::OpaqueTypeExpander>::expand_opaque_ty
  84:     0x7ffb941e2735 - <rustc_middle[54f2c08037379b7]::ty::util::OpaqueTypeExpander as rustc_type_ir[76173f0dc16ee0bf]::fold::TypeFolder<rustc_middle[54f2c08037379b7]::ty::context::TyCtxt>>::fold_ty
  85:     0x7ffb948c6830 - <&rustc_middle[54f2c08037379b7]::ty::list::List<rustc_middle[54f2c08037379b7]::ty::Ty> as rustc_type_ir[76173f0dc16ee0bf]::fold::TypeFoldable<rustc_middle[54f2c08037379b7]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[54f2c08037379b7]::ty::util::OpaqueTypeExpander>
  86:     0x7ffb941e27ff - <rustc_middle[54f2c08037379b7]::ty::util::OpaqueTypeExpander as rustc_type_ir[76173f0dc16ee0bf]::fold::TypeFolder<rustc_middle[54f2c08037379b7]::ty::context::TyCtxt>>::fold_ty
  87:     0x7ffb941e235e - <&rustc_middle[54f2c08037379b7]::ty::list::List<rustc_middle[54f2c08037379b7]::ty::generic_args::GenericArg> as rustc_type_ir[76173f0dc16ee0bf]::fold::TypeFoldable<rustc_middle[54f2c08037379b7]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[54f2c08037379b7]::ty::util::OpaqueTypeExpander>
  88:     0x7ffb941e27d7 - <rustc_middle[54f2c08037379b7]::ty::util::OpaqueTypeExpander as rustc_type_ir[76173f0dc16ee0bf]::fold::TypeFolder<rustc_middle[54f2c08037379b7]::ty::context::TyCtxt>>::fold_ty
  89:     0x7ffb941e2295 - <&rustc_middle[54f2c08037379b7]::ty::list::List<rustc_middle[54f2c08037379b7]::ty::generic_args::GenericArg> as rustc_type_ir[76173f0dc16ee0bf]::fold::TypeFoldable<rustc_middle[54f2c08037379b7]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[54f2c08037379b7]::ty::util::OpaqueTypeExpander>
  90:     0x7ffb941e275d - <rustc_middle[54f2c08037379b7]::ty::util::OpaqueTypeExpander as rustc_type_ir[76173f0dc16ee0bf]::fold::TypeFolder<rustc_middle[54f2c08037379b7]::ty::context::TyCtxt>>::fold_ty
  91:     0x7ffb941e2f97 - <rustc_middle[54f2c08037379b7]::ty::util::OpaqueTypeExpander>::expand_opaque_ty
  92:     0x7ffb941e2cc4 - <rustc_middle[54f2c08037379b7]::ty::context::TyCtxt>::try_expand_impl_trait_type
  93:     0x7ffb93f82a2d - rustc_hir_analysis[684fddeff0c0f7bf]::check::check::check_mod_item_types
  94:     0x7ffb93f81413 - rustc_query_impl[9991b025295daeb1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9991b025295daeb1]::query_impl::check_mod_item_types::dynamic_query::{closure#2}::{closure#0}, rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 0usize]>>
  95:     0x7ffb941c4f6b - rustc_query_system[886bde11500d09fb]::query::plumbing::try_execute_query::<rustc_query_impl[9991b025295daeb1]::DynamicConfig<rustc_query_system[886bde11500d09fb]::query::caches::DefaultCache<rustc_span[2f0fd5f8ae050e80]::def_id::LocalModDefId, rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[9991b025295daeb1]::plumbing::QueryCtxt, true>
  96:     0x7ffb941c4a80 - rustc_query_impl[9991b025295daeb1]::query_impl::check_mod_item_types::get_query_incr::__rust_end_short_backtrace
  97:     0x7ffb93d7cad5 - rustc_hir_analysis[684fddeff0c0f7bf]::check_crate
  98:     0x7ffb93b6af97 - rustc_interface[c52b5cc031b18b22]::passes::analysis
  99:     0x7ffb93b6abf7 - rustc_query_impl[9991b025295daeb1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9991b025295daeb1]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 1usize]>>
 100:     0x7ffb9478c58b - rustc_query_system[886bde11500d09fb]::query::plumbing::try_execute_query::<rustc_query_impl[9991b025295daeb1]::DynamicConfig<rustc_query_system[886bde11500d09fb]::query::caches::SingleCache<rustc_middle[54f2c08037379b7]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[9991b025295daeb1]::plumbing::QueryCtxt, true>
 101:     0x7ffb9478c234 - rustc_query_impl[9991b025295daeb1]::query_impl::analysis::get_query_incr::__rust_end_short_backtrace
 102:     0x7ffb948126b8 - rustc_interface[c52b5cc031b18b22]::interface::run_compiler::<core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>, rustc_driver_impl[1b37cd9153daf3ad]::run_compiler::{closure#0}>::{closure#0}
 103:     0x7ffb947a3a54 - std[5f6dbc7992e36f36]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[c52b5cc031b18b22]::util::run_in_thread_with_globals<rustc_interface[c52b5cc031b18b22]::util::run_in_thread_pool_with_globals<rustc_interface[c52b5cc031b18b22]::interface::run_compiler<core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>, rustc_driver_impl[1b37cd9153daf3ad]::run_compiler::{closure#0}>::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>
 104:     0x7ffb947a387d - <<std[5f6dbc7992e36f36]::thread::Builder>::spawn_unchecked_<rustc_interface[c52b5cc031b18b22]::util::run_in_thread_with_globals<rustc_interface[c52b5cc031b18b22]::util::run_in_thread_pool_with_globals<rustc_interface[c52b5cc031b18b22]::interface::run_compiler<core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>, rustc_driver_impl[1b37cd9153daf3ad]::run_compiler::{closure#0}>::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>::{closure#1} as core[b21e5049fb800f2c]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
 105:     0x7ffb8f797b75 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h60c39ebe8387f1c8
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/alloc/src/boxed.rs:2007:9
 106:     0x7ffb8f797b75 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1ab2eeceecb887d4
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/alloc/src/boxed.rs:2007:9
 107:     0x7ffb8f797b75 - std::sys::unix::thread::Thread::new::thread_start::h5193a614b38f3ff0
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/sys/unix/thread.rs:108:17
 108:     0x7ffb8f5559eb - <unknown>
 109:     0x7ffb8f5d97cc - <unknown>
 110:                0x0 - <unknown>


rustc version: 1.76.0-nightly (2f8d81f9d 2023-11-21)
platform: x86_64-unknown-linux-gnu

query stack during panic:
#0 [typeck] type-checking `fitness::ui::FitnessForm::__FitnessForm`
#1 [type_of_opaque] computing type of opaque `fitness::ui::FitnessForm::__FitnessForm::{opaque#0}`
#2 [type_of] computing type of `fitness::ui::FitnessForm::__FitnessForm::{opaque#0}`
#3 [check_mod_item_types] checking item types in module `fitness::ui`
#4 [analysis] running analysis passes on this crate
end of query stack
delayed span bug: no errors reported for args
   0: <rustc_errors::HandlerInner>::emit_diagnostic
   1: <rustc_session::session::Session>::delay_span_bug::<rustc_span::span_encoding::Span, &str>
   2: <rustc_hir_typeck::fn_ctxt::FnCtxt>::report_arg_errors
   3: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_argument_types
   4: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
   5: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
   6: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
   7: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_block_with_expected
   8: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
   9: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_match
  10: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  11: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_block_with_expected
  12: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  13: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_match
  14: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  15: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  16: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_block_with_expected
  17: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  18: rustc_hir_typeck::check::check_fn
  19: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_closure
  20: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  21: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_argument_types
  22: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_call
  23: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  24: rustc_hir_typeck::check::check_fn
  25: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_closure
  26: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  27: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_argument_types
  28: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_call
  29: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  30: rustc_hir_typeck::check::check_fn
  31: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_closure
  32: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  33: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_argument_types
  34: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_call
  35: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  36: rustc_hir_typeck::check::check_fn
  37: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_closure
  38: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  39: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_argument_types
  40: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_call
  41: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  42: rustc_hir_typeck::check::check_fn
  43: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_closure
  44: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  45: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_argument_types
  46: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_call
  47: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  48: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_block_with_expected
  49: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  50: rustc_hir_typeck::check::check_fn
  51: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_closure
  52: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  53: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_decl
  54: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_block_with_expected
  55: <rustc_hir_typeck::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  56: rustc_hir_typeck::check::check_fn
  57: rustc_hir_typeck::typeck
  58: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
  59: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
  60: rustc_query_impl::query_impl::typeck::get_query_incr::__rust_end_short_backtrace
  61: rustc_hir_analysis::collect::type_of::type_of_opaque
  62: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::type_of_opaque::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
  63: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
  64: rustc_query_impl::query_impl::type_of_opaque::get_query_incr::__rust_end_short_backtrace
  65: rustc_middle::query::plumbing::query_get_at::<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>>
  66: rustc_hir_analysis::collect::type_of::type_of
  67: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
  68: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
  69: rustc_query_impl::query_impl::type_of::get_query_incr::__rust_end_short_backtrace
  70: rustc_middle::query::plumbing::query_get_at::<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>>
  71: <rustc_middle::ty::util::OpaqueTypeExpander>::expand_opaque_ty
  72: <rustc_middle::ty::util::OpaqueTypeExpander as rustc_type_ir::fold::TypeFolder<rustc_middle::ty::context::TyCtxt>>::fold_ty
  73: <&rustc_middle::ty::list::List<rustc_middle::ty::Ty> as rustc_type_ir::fold::TypeFoldable<rustc_middle::ty::context::TyCtxt>>::try_fold_with::<rustc_middle::ty::util::OpaqueTypeExpander>
  74: <rustc_middle::ty::util::OpaqueTypeExpander as rustc_type_ir::fold::TypeFolder<rustc_middle::ty::context::TyCtxt>>::fold_ty
  75: <&rustc_middle::ty::list::List<rustc_middle::ty::generic_args::GenericArg> as rustc_type_ir::fold::TypeFoldable<rustc_middle::ty::context::TyCtxt>>::try_fold_with::<rustc_middle::ty::util::OpaqueTypeExpander>
  76: <rustc_middle::ty::util::OpaqueTypeExpander as rustc_type_ir::fold::TypeFolder<rustc_middle::ty::context::TyCtxt>>::fold_ty
  77: <&rustc_middle::ty::list::List<rustc_middle::ty::generic_args::GenericArg> as rustc_type_ir::fold::TypeFoldable<rustc_middle::ty::context::TyCtxt>>::try_fold_with::<rustc_middle::ty::util::OpaqueTypeExpander>
  78: <rustc_middle::ty::util::OpaqueTypeExpander as rustc_type_ir::fold::TypeFolder<rustc_middle::ty::context::TyCtxt>>::fold_ty
  79: <rustc_middle::ty::util::OpaqueTypeExpander>::expand_opaque_ty
  80: <rustc_middle::ty::context::TyCtxt>::try_expand_impl_trait_type
  81: rustc_hir_analysis::check::check::check_mod_item_types
  82: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::check_mod_item_types::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 0]>>
  83: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::LocalModDefId, rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
  84: rustc_query_impl::query_impl::check_mod_item_types::get_query_incr::__rust_end_short_backtrace
  85: rustc_hir_analysis::check_crate
  86: rustc_interface::passes::analysis
  87: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 1]>>
  88: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
  89: rustc_query_impl::query_impl::analysis::get_query_incr::__rust_end_short_backtrace
  90: rustc_interface::interface::run_compiler::<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}
  91: std::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>
  92: <<std::thread::Builder>::spawn_unchecked_<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  93: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
             at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/alloc/src/boxed.rs:2007:9
  94: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
             at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/alloc/src/boxed.rs:2007:9
  95: std::sys::unix::thread::Thread::new::thread_start
             at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/sys/unix/thread.rs:108:17
  96: <unknown>
  97: <unknown>

delayed span bug: {OpaqueTypeKey { def_id: DefId(0:3302 ~ addon[ef77]::fitness::ui::FitnessForm::__FitnessForm::{opaque#0}), args: [] }: OpaqueTypeDecl { hidden_type: OpaqueHiddenType { span: src/fitness/ui.rs:29:25: 29:38 (#2594), ty: ?0t } }}
   0: <rustc_errors::HandlerInner>::emit_diagnostic
   1: <rustc_session::session::Session>::delay_span_bug::<rustc_span::span_encoding::Span, alloc::string::String>
   2: core::ptr::drop_in_place::<rustc_infer::infer::InferCtxt>
   3: core::ptr::drop_in_place::<rustc_hir_typeck::inherited::Inherited>
   4: rustc_hir_typeck::typeck
   5: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
   6: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
   7: rustc_query_impl::query_impl::typeck::get_query_incr::__rust_end_short_backtrace
   8: rustc_hir_analysis::collect::type_of::type_of_opaque
   9: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::type_of_opaque::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
  10: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
  11: rustc_query_impl::query_impl::type_of_opaque::get_query_incr::__rust_end_short_backtrace
  12: rustc_middle::query::plumbing::query_get_at::<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>>
  13: rustc_hir_analysis::collect::type_of::type_of
  14: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
  15: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
  16: rustc_query_impl::query_impl::type_of::get_query_incr::__rust_end_short_backtrace
  17: rustc_middle::query::plumbing::query_get_at::<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>>
  18: <rustc_middle::ty::util::OpaqueTypeExpander>::expand_opaque_ty
  19: <rustc_middle::ty::util::OpaqueTypeExpander as rustc_type_ir::fold::TypeFolder<rustc_middle::ty::context::TyCtxt>>::fold_ty
  20: <&rustc_middle::ty::list::List<rustc_middle::ty::Ty> as rustc_type_ir::fold::TypeFoldable<rustc_middle::ty::context::TyCtxt>>::try_fold_with::<rustc_middle::ty::util::OpaqueTypeExpander>
  21: <rustc_middle::ty::util::OpaqueTypeExpander as rustc_type_ir::fold::TypeFolder<rustc_middle::ty::context::TyCtxt>>::fold_ty
  22: <&rustc_middle::ty::list::List<rustc_middle::ty::generic_args::GenericArg> as rustc_type_ir::fold::TypeFoldable<rustc_middle::ty::context::TyCtxt>>::try_fold_with::<rustc_middle::ty::util::OpaqueTypeExpander>
  23: <rustc_middle::ty::util::OpaqueTypeExpander as rustc_type_ir::fold::TypeFolder<rustc_middle::ty::context::TyCtxt>>::fold_ty
  24: <&rustc_middle::ty::list::List<rustc_middle::ty::generic_args::GenericArg> as rustc_type_ir::fold::TypeFoldable<rustc_middle::ty::context::TyCtxt>>::try_fold_with::<rustc_middle::ty::util::OpaqueTypeExpander>
  25: <rustc_middle::ty::util::OpaqueTypeExpander as rustc_type_ir::fold::TypeFolder<rustc_middle::ty::context::TyCtxt>>::fold_ty
  26: <rustc_middle::ty::util::OpaqueTypeExpander>::expand_opaque_ty
  27: <rustc_middle::ty::context::TyCtxt>::try_expand_impl_trait_type
  28: rustc_hir_analysis::check::check::check_mod_item_types
  29: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::check_mod_item_types::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 0]>>
  30: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::LocalModDefId, rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
  31: rustc_query_impl::query_impl::check_mod_item_types::get_query_incr::__rust_end_short_backtrace
  32: rustc_hir_analysis::check_crate
  33: rustc_interface::passes::analysis
  34: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 1]>>
  35: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
  36: rustc_query_impl::query_impl::analysis::get_query_incr::__rust_end_short_backtrace
  37: rustc_interface::interface::run_compiler::<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}
  38: std::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>
  39: <<std::thread::Builder>::spawn_unchecked_<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  40: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
             at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/alloc/src/boxed.rs:2007:9
  41: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
             at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/alloc/src/boxed.rs:2007:9
  42: std::sys::unix::thread::Thread::new::thread_start
             at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/sys/unix/thread.rs:108:17
  43: <unknown>
  44: <unknown>

thread 'rustc' panicked at library/core/src/panicking.rs:144:5:
panic in a destructor during cleanup
stack backtrace:
   0:     0x7ffb8f772ba1 - std::backtrace_rs::backtrace::libunwind::trace::h5e85954398d12ce3
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
   1:     0x7ffb8f772ba1 - std::backtrace_rs::backtrace::trace_unsynchronized::hd106003daf308f1b
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7ffb8f772ba1 - std::backtrace::Backtrace::create::h258b89056f4f50c8
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/backtrace.rs:332:13
   3:     0x7ffb8f772af0 - std::backtrace::Backtrace::force_capture::hfbfae9ab8ad6a39f
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/backtrace.rs:313:9
   4:     0x7ffb924f354c - std[5f6dbc7992e36f36]::panicking::update_hook::<alloc[73e8f31ebd2d06b4]::boxed::Box<rustc_driver_impl[1b37cd9153daf3ad]::install_ice_hook::{closure#0}>>::{closure#0}
   5:     0x7ffb8f78dcb8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h583f85f885642a98
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/alloc/src/boxed.rs:2021:9
   6:     0x7ffb8f78dcb8 - std::panicking::rust_panic_with_hook::h51b7b3de85b330a5
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/panicking.rs:783:13
   7:     0x7ffb8f78d9d9 - std::panicking::begin_panic_handler::{{closure}}::h9f9c9a467f60d8ba
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/panicking.rs:649:13
   8:     0x7ffb8f78afc6 - std::sys_common::backtrace::__rust_end_short_backtrace::h037a6ad83e4b9233
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/sys_common/backtrace.rs:171:18
   9:     0x7ffb8f78d772 - rust_begin_unwind
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/panicking.rs:645:5
  10:     0x7ffb8f7da3a8 - core::panicking::panic_nounwind_fmt::h31361ed41e338141
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/core/src/panicking.rs:106:14
  11:     0x7ffb8f7da4ac - core::panicking::panic_nounwind_nobacktrace::h487578425c4a3c9f
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/core/src/panicking.rs:144:5
  12:     0x7ffb8f7da6b3 - core::panicking::panic_in_cleanup::he307408fe51ed4ad
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/core/src/panicking.rs:237:5
  13:     0x7ffb9481428b - rustc_interface[c52b5cc031b18b22]::interface::run_compiler::<core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>, rustc_driver_impl[1b37cd9153daf3ad]::run_compiler::{closure#0}>::{closure#0}
  14:     0x7ffb947a3a54 - std[5f6dbc7992e36f36]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[c52b5cc031b18b22]::util::run_in_thread_with_globals<rustc_interface[c52b5cc031b18b22]::util::run_in_thread_pool_with_globals<rustc_interface[c52b5cc031b18b22]::interface::run_compiler<core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>, rustc_driver_impl[1b37cd9153daf3ad]::run_compiler::{closure#0}>::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>
  15:     0x7ffb947a387d - <<std[5f6dbc7992e36f36]::thread::Builder>::spawn_unchecked_<rustc_interface[c52b5cc031b18b22]::util::run_in_thread_with_globals<rustc_interface[c52b5cc031b18b22]::util::run_in_thread_pool_with_globals<rustc_interface[c52b5cc031b18b22]::interface::run_compiler<core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>, rustc_driver_impl[1b37cd9153daf3ad]::run_compiler::{closure#0}>::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[b21e5049fb800f2c]::result::Result<(), rustc_span[2f0fd5f8ae050e80]::ErrorGuaranteed>>::{closure#1} as core[b21e5049fb800f2c]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  16:     0x7ffb8f797b75 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h60c39ebe8387f1c8
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/alloc/src/boxed.rs:2007:9
  17:     0x7ffb8f797b75 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1ab2eeceecb887d4
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/alloc/src/boxed.rs:2007:9
  18:     0x7ffb8f797b75 - std::sys::unix::thread::Thread::new::thread_start::h5193a614b38f3ff0
                               at /rustc/2f8d81f9dbac6b8df982199f69da04a4c8357227/library/std/src/sys/unix/thread.rs:108:17
  19:     0x7ffb8f5559eb - <unknown>
  20:     0x7ffb8f5d97cc - <unknown>
  21:                0x0 - <unknown>

Hope this helps and thank for your work.

[kpreid]

Relabeling issues which don't have a runnable reproduction (as opposed to not having a minimized one) to the new label S-needs-repro.
@rustbot label +S-needs-repro -E-needs-mcve

[antonWetzel]

I think I encountered the same bug. A minimal example is below.

fn main() {
    let target: Target = create_target();
    target.get(0); // correct arguments work
    target.get(10.0); // CRASH HERE
}

// must be generic
fn create_target<T>() -> T {
    unimplemented!()
}

// unimplemented trait, but contains function with the same name
pub trait RandomTrait {
    fn get(&mut self); // but less arguments
}

struct Target;

impl Target {
    // correct function with arguments
    pub fn get(&self, data: i32) {
        unimplemented!()
    }
}

I think the problem is a lookup, which includes the unimplemented trait without checking the length of the argument list before accessing.

rustc --version --verbose:

rustc 1.75.0 (82e1608df 2023-12-21)
binary: rustc
commit-hash: 82e1608dfa6e0b5569232559e3d385fea5a93112
commit-date: 2023-12-21
host: x86_64-pc-windows-msvc
release: 1.75.0
LLVM version: 17.0.6

Also fails on nightly.

nightly ructc-ice.txt

thread 'rustc' panicked at compiler\rustc_hir_typeck\src\demand.rs:403:52:
index out of bounds: the len is 1 but the index is 1
stack backtrace:
   0:     0x7ffa14f4c884 - std::backtrace::Backtrace::force_capture::he469c48bbc73ed78
   1:     0x7ffa14f4c7e4 - std::backtrace::Backtrace::force_capture::he469c48bbc73ed78
   2:     0x7ff9d6beeca2 - <tracing_subscriber[90353078a31cc387]::fmt::format::Writer>::write_fmt
   3:     0x7ffa14f66093 - std::panicking::rust_panic_with_hook::h806f7ce9f81a7ef9
   4:     0x7ffa14f65f39 - <std::panicking::begin_panic_handler::StaticStrPayload as core::panic::PanicPayload>::take_box::he581e95446db7e8b
   5:     0x7ffa14f631c9 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h4e51f690c01a6ffe
   6:     0x7ffa14f65c06 - rust_begin_unwind
   7:     0x7ffa14fbae47 - core::panicking::panic_fmt::h116e281faad9fb1e
   8:     0x7ffa14fbb0a4 - core::panicking::panic_bounds_check::ha855fcf85dd844a8
   9:     0x7ff9d6e777a3 - rustc_hir_typeck[558be43417a84ebb]::inspect_typeck
  10:     0x7ff9d6e87f4c - <rustc_hir_typeck[558be43417a84ebb]::fn_ctxt::FnCtxt>::note_source_of_type_mismatch_constraint
  11:     0x7ff9d6e92c0b - <rustc_hir_typeck[558be43417a84ebb]::fn_ctxt::FnCtxt>::blame_specific_expr_if_possible
  12:     0x7ff9d5cbf57d - <rustc_hir_typeck[558be43417a84ebb]::fn_ctxt::FnCtxt>::probe_instantiate_query_response
  13:     0x7ff9d5c8c6a7 - <rustc_hir_typeck[558be43417a84ebb]::fn_ctxt::FnCtxt>::demand_eqtype
  14:     0x7ff9d5cc3fe6 - <rustc_hir_typeck[558be43417a84ebb]::fn_ctxt::FnCtxt>::check_struct_path
  15:     0x7ff9d5c8b8b8 - <rustc_hir_typeck[558be43417a84ebb]::fn_ctxt::FnCtxt>::demand_eqtype
  16:     0x7ff9d5ca6c69 - <rustc_hir_typeck[558be43417a84ebb]::fn_ctxt::FnCtxt>::demand_eqtype
  17:     0x7ff9d5d3627e - <rustc_hir_typeck[558be43417a84ebb]::gather_locals::GatherLocalsVisitor as rustc_hir[b08b940a2b949ed3]::intravisit::Visitor>::visit_pat
  18:     0x7ff9d5c6910a - rustc_hir_typeck[558be43417a84ebb]::typeck
  19:     0x7ff9d6474bdf - <rustc_query_impl[d063917ba4a6e24d]::plumbing::QueryCtxt as rustc_query_system[10c1d65a14ee7384]::query::QueryContext>::load_side_effects
  20:     0x7ff9d65528df - <rustc_query_impl[d063917ba4a6e24d]::plumbing::QueryCtxt as rustc_query_system[10c1d65a14ee7384]::query::QueryContext>::load_side_effects
  21:     0x7ff9d651474b - <rustc_query_impl[d063917ba4a6e24d]::plumbing::QueryCtxt as rustc_query_system[10c1d65a14ee7384]::query::QueryContext>::load_side_effects
  22:     0x7ff9d6553dd1 - <rustc_query_impl[d063917ba4a6e24d]::plumbing::QueryCtxt as rustc_query_system[10c1d65a14ee7384]::query::QueryContext>::load_side_effects
  23:     0x7ff9d5da3606 - rustc_hir_analysis[ad7694e982418c93]::check_crate
  24:     0x7ff9d5b541ba - rustc_interface[860a9697faa18679]::passes::analysis
  25:     0x7ff9d56ff4dd - rustc_query_impl[d063917ba4a6e24d]::profiling_support::alloc_self_profile_query_strings
  26:     0x7ff9d57b6a89 - <dyn std[2fccd03cdc4dc1d1]::io::Write as nu_ansi_term[ed524ba3f98f72d7]::write::AnyWrite>::write_str
  27:     0x7ff9d57a5428 - <dyn std[2fccd03cdc4dc1d1]::io::Write as nu_ansi_term[ed524ba3f98f72d7]::write::AnyWrite>::write_str
  28:     0x7ff9d5726556 - rustc_query_impl[d063917ba4a6e24d]::profiling_support::alloc_self_profile_query_strings
  29:     0x7ff9d56e2c17 - rustc_query_impl[d063917ba4a6e24d]::profiling_support::alloc_self_profile_query_strings
  30:     0x7ff9d2c46ccd - <rustc_middle[bd94da99f9fcc4b9]::ty::SymbolName as core[fd47e243cb8a0c47]::fmt::Display>::fmt
  31:     0x7ff9d2c148d9 - <rustc_middle[bd94da99f9fcc4b9]::ty::SymbolName as core[fd47e243cb8a0c47]::fmt::Display>::fmt
  32:     0x7ff9d2c42c7d - <rustc_middle[bd94da99f9fcc4b9]::ty::SymbolName as core[fd47e243cb8a0c47]::fmt::Display>::fmt
  33:     0x7ff9d2c446f6 - <rustc_middle[bd94da99f9fcc4b9]::ty::SymbolName as core[fd47e243cb8a0c47]::fmt::Display>::fmt
  34:     0x7ff9d2c0a84f - rustc_driver_impl[30237640f99167db]::main
  35:     0x7ff9d2c0f718 - rustc_driver_impl[30237640f99167db]::args::arg_expand_all
  36:     0x7ffa14f77acc - std::sys::pal::windows::thread::Thread::new::h79e6e6a8115a814f
  37:     0x7ffa77db257d - BaseThreadInitThunk
  38:     0x7ffa7966aa58 - RtlUserThreadStart


rustc version: 1.78.0-nightly (8ace7ea1f 2024-02-07)
platform: x86_64-pc-windows-msvc

query stack during panic:
#0 [typeck] type-checking `main`
#1 [analysis] running analysis passes on this crate
end of query stack

[jieyouxu]

********************************************************************************
Regression in nightly-2023-06-20
********************************************************************************

fetching https://static.rust-lang.org/dist/2023-06-19/channel-rust-nightly-git-commit-hash.txt
nightly manifest 2023-06-19: 40 B / 40 B [==========================================================================================================================================================================================================================================================] 100.00 % 892.88 KB/s converted 2023-06-19 to 2d0aa57684e10f7b3d3fe740ee18d431181583ad
fetching https://static.rust-lang.org/dist/2023-06-20/channel-rust-nightly-git-commit-hash.txt
nightly manifest 2023-06-20: 40 B / 40 B [============================================================================================================================================================================================================================================================] 100.00 % 1.46 MB/s converted 2023-06-20 to fe7454bf439c93cbe9ac8a8f7fcfacd5a40244c2
looking for regression commit between 2023-06-19 and 2023-06-20
fetching (via remote github) commits from max(2d0aa57684e10f7b3d3fe740ee18d431181583ad, 2023-06-17) to fe7454bf439c93cbe9ac8a8f7fcfacd5a40244c2
ending github query because we found starting sha: 2d0aa57684e10f7b3d3fe740ee18d431181583ad
get_commits_between returning commits, len: 9
  commit[0] 2023-06-18: Auto merge of #112645 - Kobzol:ci-mingw-merge, r=pietroalbini
  commit[1] 2023-06-18: Auto merge of #112774 - compiler-errors:rollup-z8oof6r, r=compiler-errors
  commit[2] 2023-06-19: Auto merge of #112617 - lqd:dump-mir-dataflow, r=tmiasko
  commit[3] 2023-06-19: Auto merge of #112724 - scottmcm:simpler-unchecked-shifts, r=Mark-Simulacrum
  commit[4] 2023-06-19: Auto merge of #112784 - lnicola:sync-from-ra, r=lnicola
  commit[5] 2023-06-19: Auto merge of #112351 - BoxyUwU:proof_tree_generation, r=lcnr
  commit[6] 2023-06-19: Auto merge of #112366 - lukas-code:test, r=Nilstrieb
  commit[7] 2023-06-19: Auto merge of #112238 - scottmcm:mir-add-unchecked, r=cjgillot
  commit[8] 2023-06-19: Auto merge of #112805 - matthiaskrgr:rollup-r5yrefu, r=matthiaskrgr
ERROR: no CI builds available between 2d0aa57684e10f7b3d3fe740ee18d431181583ad and fe7454bf439c93cbe9ac8a8f7fcfacd5a40244c2 within last 167 days